Features:Power requirement:10-50VDCRated current: 40A��Maximum output current��Frequency: 200KhzControl Motor Power: 0.01-2000WWorking voltage 12V: 480W(max)Working voltage 24V: 960W(max) Working voltage 36V: 1440W(max)Working voltage 50V: 2000W(max)Regulation range:5-100%PCBSize: Approx. 9 x 5.1cm/3.55 x 2.01inchCase size: Approx. 10.7 x 5.5 x 3.9cm/4.21 x 2.17 x 1.54inchPackage Included:1 x Motor Speed Control